Method and apparatus for detecting a DS3 frame format
US7468987B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2003 |
| Grant date | Dec 23, 2008 |
| Priority date | — |
| Expiry date | May 10, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/0608
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus for identifying a frame format associated with a DS3 data signal are disclosed. According to one aspect of the present invention, a method for detecting a frame format of a signal which has a plurality of frames includes receiving a first frame and determining when a parity associated with the first frame and a first bit associated with the first frame indicate that a first counter is to be incremented. The first counter is incremented when it is determined that the first counter is to be incremented. The method also includes determining when the signal is of a first format through a comparison of the first counter with a first threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.